Home / 120,749.24-180,888.23-79,069.88

Finding the Fourth Proportional to 120,749.24, 180,888.23 and 79,069.88

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Solution

The fourth proportional to 120,749.24, 180,888.23 and 79,069.88 is: 118,450.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,749.24 : 180,888.23 = 79,069.88 : x
  2. Step 2: Convert to fraction form
    120,749.24/180,888.23 = 79,069.88/x
  3. Step 3: Cross multiply
    120,749.24x = 180,888.23 × 79,069.88
  4. Step 4: Simplify right side
    120,749.24x = 14,302,810,639.51
  5. Step 5: Solve for x
    x = 14,302,810,639.51/120,749.24
  6. Step 6: Final answer
    x = 118,450.52

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.